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Proof step 35 from proof fix2rest-last (previous step)

2 - # bytes0 + 1 = 0, bytes2int(bytes0 + by ') < 0, # bytes0 ≤ 1 ⊦ (bytes0 + by ').rest = by '

User applied rule cut formula

And obtained the following new goals

Proof step 36:
# bytes0 = 1, 2 - # bytes0 + 1 = 0, bytes2int(bytes0 + by ') < 0, # bytes0 ≤ 1 ⊦ (bytes0 + by ').rest = by '

Rule argument

fma: # bytes0 = 1

Additional information

Used simplifier rules: ⊦ m ≠ n → (m ≤ n ↔ m < n);% ⊦ m < 1 ↔ m = 0;% ⊦ # bytes = 0 ↔ bytes = [];% ⊦ # [] = 0; Used formulas: # bytes0 = 1